rkhunter false positive warnings

Hi, I received these warnings in rkhunter result, i want to know its false positive warning or really something is wrong in server? # rkhunter -c --rwo Warning: The command '/sbin/ifdown' has been replaced by a script: /sbin/ifdown: Bourne-Again shell script text executable Warning: The command '/sbin/ifup' has been replaced by a script: /sbin/ifup: Bourne-Again shell script text executable Warning: The file properties have changed: File: /bin/passwd Current hash: 42e6b3ae4d732e63e81a6da2e1a687e13f8ea67a Stored hash : 99664d643fb0f29ea6316f2f6c20bb0129660b2d Warning: The file properties have changed: File: /usr/sbin/adduser Current hash: 2d823ef1ef4a17de1fa5c2da88102af7e24889e0 Stored hash : 57e72e2da41be55dcaa60064af9550b29aab8a8e Current file modification time: 1428437472 (08-Apr-2015 00:11:12) Stored file modification time : 1424535419 (21-Feb-2015 20:16:59) Warning: The file properties have changed: File: /usr/sbin/groupadd Current file modification time: 1428400344 (07-Apr-2015 13:52:24) Stored file modification time : 1413380047 (15-Oct-2014 17:34:07) Warning: The file properties have changed: File: /usr/sbin/groupdel Current file modification time: 1428400344 (07-Apr-2015 13:52:24) Stored file modification time : 1413380047 (15-Oct-2014 17:34:07) Warning: The file properties have changed: File: /usr/sbin/groupmod Current file modification time: 1428400344 (07-Apr-2015 13:52:24) Stored file modification time : 1413380047 (15-Oct-2014 17:34:07) Warning: The file properties have changed: File: /usr/sbin/grpck Current file modification time: 1428400344 (07-Apr-2015 13:52:24) Stored file modification time : 1413380047 (15-Oct-2014 17:34:07) Warning: The file properties have changed: File: /usr/sbin/pwck Current file modification time: 1428400344 (07-Apr-2015 13:52:24) Stored file modification time : 1413380047 (15-Oct-2014 17:34:07) Warning: The file properties have changed: File: /usr/sbin/useradd Current hash: 2d823ef1ef4a17de1fa5c2da88102af7e24889e0 Stored hash : 57e72e2da41be55dcaa60064af9550b29aab8a8e Current file modification time: 1428400344 (07-Apr-2015 13:52:24) Stored file modification time : 1413380047 (15-Oct-2014 17:34:07) Warning: The file properties have changed: File: /usr/sbin/userdel Current file modification time: 1428400344 (07-Apr-2015 13:52:24) Stored file modification time : 1413380047 (15-Oct-2014 17:34:07) Warning: The file properties have changed: File: /usr/sbin/usermod Current hash: 8e7fc345a2b26f6001eb23c968f85e83231fa494 Stored hash : 7142f1a47df44f41a080544ee56713023e3347de Current file modification time: 1428400344 (07-Apr-2015 13:52:24) Stored file modification time : 1413380047 (15-Oct-2014 17:34:07) Warning: The file properties have changed: File: /usr/sbin/vipw Current file modification time: 1428400344 (07-Apr-2015 13:52:24) Stored file modification time : 1413380047 (15-Oct-2014 17:34:07) Warning: The file properties have changed: File: /usr/bin/curl Current hash: Unavailable Stored hash : 375b8a15b1cc2efa15448d9fcc606cd81af3ef51 Try running the command 'prelink /usr/bin/curl' to resolve dependency errors. Warning: The command '/usr/bin/GET' has been replaced by a script: /usr/bin/GET: a /usr/bin/perl -w script text executable Warning: The file properties have changed: File: /usr/bin/lastlog Current file modification time: 1428400344 (07-Apr-2015 13:52:24) Stored file modification time : 1413380047 (15-Oct-2014 17:34:07) Warning: The file properties have changed: File: /usr/bin/ldd Current file modification time: 1432737858 (27-May-2015 18:44:18) Stored file modification time : 1422386449 (27-Jan-2015 23:20:49) Warning: The command '/usr/bin/ldd' has been replaced by a script: /usr/bin/ldd: Bourne-Again shell script text executable Warning: The file properties have changed: File: /usr/bin/lynx Current hash: Unavailable Stored hash : 3fe5f3797c47b672ed7a2e4285e07770e2e83fde Try running the command 'prelink /usr/bin/lynx' to resolve dependency errors. Warning: The file properties have changed: File: /usr/bin/newgrp Current permissions: 4755 Stored permissions: 0755 Current file modification time: 1428400341 (07-Apr-2015 13:52:21) Stored file modification time : 1413380045 (15-Oct-2014 17:34:05) Warning: The file properties have changed: File: /usr/bin/wget Current hash: Unavailable Stored hash : e4a0f169df4dbaaf6ae8a6eb7a4858f3624caa1f Try running the command 'prelink /usr/bin/wget' to resolve dependency errors. Warning: The command '/usr/bin/whatis' has been replaced by a script: /usr/bin/whatis: POSIX shell script text executable Warning: The file properties have changed: File: /usr/local/cpanel/bin/jail_safe_passwd Current hash: 42e6b3ae4d732e63e81a6da2e1a687e13f8ea67a Stored hash : 99664d643fb0f29ea6316f2f6c20bb0129660b2d Current size: 15231975 Stored size: 14743530 Current file modification time: 1430770387 (05-May-2015 00:13:07) Stored file modification time : 1424555060 (22-Feb-2015 01:44:20)
Best Regards